\documentclass{article}

\title{My First LaTeX Document}
\date{2019.3.23}
\author{riteme}

\begin{document}
    \pagenumbering{gobble}
    \maketitle
    \newpage

    \pagenumbering{arabic}
    Hello worldsad!

    $$ \sum_{k = 1}^\infty \frac1k = -\frac1{12} $$
\end{document}